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21 août 2015 5 21 /08 /août /2015 20:52

Photo : Pétrolier sur sa bouée
Fin 93, Coup de fil de Marseille. La grande maison me propose un poste de Mooring Master Supervisor au Cameroun pour remplacer le vieux Raymond qui partait à la retraite.

MMS,  ce titre sonne pas mal, répondis-je, mais je ne sais pas du tout en quoi cela consiste.

Bof tu verras, me dit mon interlocuteur, c’est un boulot super cool qui consiste à monter sur les pétroliers et à ensuite les diriger sur une bouée de chargement en pleine mer pour les ravitailler en brut.

Et pour la mise au courant, ne t’inquiètes pas, tu travailleras en double pendant les 2 premières semaines avec Jean-René qui te brieferas sur ce travail particulier.

Ouais mais la plongée dans tous ça  rétorquais-je ?

Pas de panique, en plus des pétroliers, tu auras aussi à t’occuper de la maintenance en surface et sous eau des 2 bouées de chargement du terminal de Kolé.

Comme il commençait à y avoir pas mal de grand changement au sein de la firme et que les chantiers de plongée avaient l’air de diminuer, je m’empressai d’accepter, surtout qu’encore une fois, ce type de chantier allait me permettre d’à nouveau avoir des rotations régulières mieux adaptées à ma vie familiale.

Si bien qu’une fois de plus je me retrouvai quelques jours plus tard à Douala.

A l’inverse, d’autres endroits en Afrique, cette ville était assez agréable et à l’exception de quelques endroits où il valait mieux ne pas se promener seul, l’insécurité n’y était pas trop élevé puisque au cours de mes différents séjours je n’y avais subit qu’une seule agression avec tentative de vol.

Etant arrivé à l’aéroport en début de soirée, j’appris que mon départ en mer n’était prévu que pour le lendemain matin et donc une chambre à l’hôtel IBIS m’avait été réservée ce qui je dois bien le reconnaître était bien plus agréable que d’être immédiatement transféré vers la barge via l’un ou l’autre bateau inconfortable sur lequel il fallait parfois passer plusieurs heures sans même avoir droit à la moindre collation.

Ici au moins je pouvais dîner à l’aise, prendre un dernier verre au bar avant de quitter la civilisation pour les 8 semaines à venir et profiter d’une dernière bonne nuit de sommeil.

Quant je dis passer une bonne nuit de sommeil, je dois dire que j’exagère un peu car bien qu’étant très confortable, cet hôtel était malgré tout assez bruyant.

Souvent au cours de la nuit on entendait dans les couloirs un « toc toc toc » sur l’une ou l’autre porte suivi bien naturellement de « qu’est-ce que c’est ? »

La réponse elle, était toujours la même « c’est l’amour qui frappe à la porte »

Evidemment, la première fois cela  que cela m’arriva, je fus quelques peu surpris.

Mais, maintenant, connaissant ce type de coutume locale, je prenais soin de toujours d’amener avec moi, ma boite de …..boules Quiès, ce qui me permettait malgré tout de ne pas être trop perturbé par les allées et venues de ces charmantes dames.

Le lendemain matin, en route pour le port où j’embarque ainsi que d’autres travailleurs locaux sur une vedette rapide qui va nous emmener sur le site.



Quelques heures plus tard, me voilà sur le tanker tampon SEREPCA à bord duquel m’attend JR, Bruno et ses collègues africains.

 


Après les présentations d’usage au tonton et les divers membres d’équipage, direction ma cabine.

Hé pas mal du tout, une cabine d’officier spacieuse avec bureau et petit salon pour moi seul, cela change des cabines merdiques de certaines barges pourries que j’avais déjà connu.

Très rapidement, JR me met au parfum, ici, nous sommes sur un navire de la marine marchande et les règles à bord sont celles de la marine ce qui signifie un peu plus de discipline et de tenue que sur nos barges à plongeurs où on n’arrête parfois pas de déconner.

A bord, continua-t-il même pour dîner, il y a un rituel à respecter.

Personne à table avant le Commandant et surtout, on respecte les places de chacun.

Au début, je me pliai comme tout le monde à cette dernière règle, mais un peu plus tard après avoir été bien intégré au sein de cette communauté de marins, j’éprouvai un malin plaisir à changer de place plusieurs fois par mois au grand désarroi des personnes concernées.

Au cours des jours suivants, mon binôme m’initia à ma nouvelle mission qui comme cité plus haut consistait entre autre à remplir les tankers qui arrivaient lège sur le champs.

Comme on peut l’imaginer, remplir un tanker n’est pas aussi aisé que faire le plein de sa voiture.

Pour nous, il fallait d’abord aborder le navire en pleine mer pour y acheminer tout le matériel dont nous avions besoin.
 


Une fois à bord tandis que le navire continuait sa route vers la bouée, nous disposions d’environ une demi-heure pour préparer le matériel d’amarrage, de relevage et de connexion des gros et lourds flexibles de chargement.



Puis en approchant de la bouée, le rôle du MMS, donc le mien, consistait à se placer à l’avant du bateau et à via le walky talky, donner mes instructions au commandant pour le guider très précisément au cours de son approche finale jusqu’à ce qu’il s’arrête pile à quelques mètres de la bouée de chargement
.


Ensuite, une fois le navire amarré sur la bouée, les deux gros flexibles de chargement étaient hissés à bord pour être connectés aux manifolds de chargement, ce qui permettait alors de faire le plein des citernes en une vingtaine d’heures.
 


Comme prévu, Jean René rentra en France au bout de deux semaines et autant dire que la première fois que je fus seul pour accomplir cette tâche, je suais non pas de chaleur, mais bien de trouille parce qu’il ne fallait pas que je me loupe.

Si tel était le cas, deux scénarios étaient possibles.

Soit le pétrolier passait à coté de la bouée et s’arrêtait un peu trop loin, ce qui signifiait alors qu’il était bon pour refaire une nouvelle approche, ce qui voulait dire au minimum une heure de perdue, soit il rentrait dans la bouée, arrachait le tout ce qui signifiait alors que moi j’étais viré.

Heureusement, au cours de mes divers séjours, j’appris rapidement à savoir comment réagissaient ces énormes mastodontes de 150.000 à 200.000 tonnes et parvins à chaque fois à les mener à bon port.

La fréquence des navires étaient assez aléatoire, ce qui permettait alors de travailler entre les chargement sur  les bouées de KLB1 et KLB2.



Chaque bouée, avait un programme d’entretien très complet qui se passait aussi bien au dessus qu’en dessous de l’eau.

Sous eau, la tâche principale des plongeurs consistait à vérifier l’état et la configuration des gros flexibles qui partaient du fond via le PLEM (Pipeline End Manifold) et arrivaient sous la bouée, de même que l’état et la configuration des six énormes chaînes qui maintenaient la bouée en position.
 


Les plongées d’inspection sur le fond, réservaient parfois quelques surprises car la visibilité y était souvent très limitée et dès lors, il était assez fréquent de se faire mordiller les doigts par quelques petites murènes qui se vengeaient d’être dérangée par nos inspections tactiles.

Un autre problème de visibilité que nous rencontrions parfois sur le champ, mais en surface cette fois était du à l’harmattan.

Celui-ci était un vent chaud et poussiéreux qui provenait du Sahara et qui durant plusieurs jours de suite pouvait obscurcir l’atmosphère.

Le 2 février 94, nous étions partis depuis le matin pour aller faire les entretiens sur la bouée KLB2 qui se trouvait à environ 20 minutes de zodiac de notre tanker tampon.

La visibilité n’était pas terrible, mais elle était largement suffisante pour repérer la bouée à mi chemin.

La matinée passa relativement vite et comme midi approchait, je décidai d’arrêter les travaux et de rentrer dîner.

Très vite pourtant, nous nous rendons compte que l’atmosphère est devenue extrêmement chargée et on n’y voit plus à 50 m.

Qu’à cela ne tienne, le SEREPCA est assez grand et on ne peut pas le raté.
 


Donc full speed et cap au Nord.

Une vingtaine de minutes plus tard, tout le monde est aux aguets et scrute l’horizon afin de détecter la masse du tanker, mais rien en vue, juste cette sorte d’épais brouillard qui nous empêche de voir quoi que ce soit.

Normalement, nous ne devrions pas être loin pensais-je car nous avions navigué à peu près à la même vitesse et durant la même période de temps qu’à l’aller.

Donc je demandai au plongeur pilote de bien vouloir mettre le cap au NNE à petite vitesse pendant une minute.

Rien, pas le moindre bateau.

Idem au NNO, crottes  de bique, toujours rien.

Bon les gars on va stopper ici dis-je, pas la peine de risquer de s’éloigner plus.

Je vais appeler le bateau et demander qu’ils actionnent la corne de brume ainsi nous saurons nous diriger au son.

 

SEREPCA, SEREPCA, SEREPCA : zodiac plongeur !

 

SEREPCA, SEREPCA, SEREPCA : zodiac plongeur !

 

SEREPCA, SEREPCA, SEREPCA : zodiac plongeur !

 

Rien aucune réponse du tanker.

Je regardai ma montre. 12h10, pas la peine d’insister, ils sont sans doute tous à table.

Que faire, nous n’allions tout de même pas attendre qu’ils aient terminé la sieste pour les rappeler.

En principe, notre supply d’assistance le « Cristal fish » devait être quelque part sur le champ et dès lors, je me décidai à l’appeler.

Un seul appel suffit pour avoir le radio en ligne.

Immédiatement, je lui demandai de bien vouloir me passer son supérieur.

Deux minutes plus tard celui-ci arriva à la radio.

Bonjour Commandant ici Francis.

Dites, nous avons un petit problème, nous sommes égaré.

Est-ce que vous vous trouvez à proximité du SEREPCA ?

Non, nous sommes à coté de la BOS.

Ah merde, donc pas la peine de faire sonner la corne, car même si on l’entendait, cela ne nous entraînerait pas dans la bonne direction.

Aussitôt je demandai :

Est-ce que vous pouvez essayer de nous repérer sur le radar ?

OK une minute, je regarde.

Non je ne vois rien à l’écran, faites un 360 ° à faible vitesse pour voir.

Sorry toujours rien.

Cela devenait gênant, évidemment nous avions assez d’essence pour rejoindre la terre qui devait se trouvait à environ deux heures de route, mais nous aurions pu accoster n’importe où avec les risques que cela comporte.

Pendant que je réfléchissais comme me dépêtrer de ce merdier, une idée me vint.

Pendant mon séjour chez les plongeurs démineurs quelques décennies plus tôt, nous avions sur nos embarcations de plongée un déflecteur qui permettait au radariste de nous emmener sur les contacts suspects.

Donc, ici, pourquoi ne pas faire la même chose.

Problème, nous n’avions pas de déflecteur dans notre canot.

Pas de déflecteur, ok, mais nous pouvions peut-être en fabriquer un ?

Nous avions déjà deux pagaies qui pouvaient servir de mats.

Restait à trouver de quoi faire le déflecteur.

Avons-nous des fumeurs à bord ?

Ouf, oui, Hervé et Eke.

Bon désolé les gars, pouvez-vous vider vos paquets de cigarettes et me donner les emballages.

Rapidement ils s’exécutèrent mais me regardèrent bizarrement lorsque je déchirai les paquets et les retournai de manière à avoir l’aluminium à l’extérieur.

J’avais maintenant le matériau réfléchissant.

Ne restait plus qu’à trouver un support et quoi de mieux que mon petit sac à dos.

Très rapidement  l’aluminium fut scotché sur mon sac, puis ce dernier monté sur les pagaies.

Ca y est, nous avions un semblant de déflecteur.

Je rappelai le Cristal Fish.

Commandant, nous avons fabriquer un déflecteur, pouvez-vous regarder si vous avez un contact ?

Allez y zodiac, mettez en route lentement.

Lentement, notre bateau se mit en route. Pourvu que cela marche pensais-je.

Quelques secondes plus tard, nouvel appel radio.

Zodiac : Cristal fish.

Ca y est, je vous ai repéré vous êtes à un demi mille de votre destination.

Partez au cap 105 je reste en contact et vous guide.

10 minutes plus tard, notre tanker était en vue.

Aussitôt je remerciai le tonton du supply de son assistance.

Une fois a bord, je vis que le Commandant avait sa tête des mauvais jours.

Il nous dit froidement.

Messieurs, la prochaine fois ayez la politesse de bien vouloir arriver à l’heure à table.

Ah ça, il ne manque pas de toupet celui-la pensais-je sans faire de commentaire.

A part ce petit incident, rien d’autre de particulier ne m’arriva au cours des quatre rotations que je fis sur ce bateau.

Le travail me plaisait assez mais il n’y avait pas assez de  plongée à mon goût.

De plus, mon « petit » qui avait maintenant 24 ans et que je n’avais pas toujours vu grandir, avait quitté le nid familial.

 Ma douce moitié elle supportait de moins en moins mes séjours à l’étranger et me supplia d’arrêter.

Résultat, en ce triste jour du 19 août 94 je me résignai à donner ma démission à cette entreprise où j’avais eu l’occasion de vivre une extraordinaire aventure pendant environ 16 années.

La suite de ma carrière professionnelle un peu moins palpitante, continua par un incident de parcours durant lequel on tenta durant neuf mois de m’initier à certaines pratiques auxquelles je n’adhérais pas.

Après m’être encouru de là, je repris contact avec le fils de mon premier employeur qui avait à son tour repris les affaires de son père, et fut tout heureux de m’embaucher.

Aujourd’hui, je suis toujours dans le métier, mais conformément aux prédictions que m’avait faites un marin Indien en 1983 je passe maintenant une bonne partie de mon temps au bureau où je suis choyé par la gent féminine qui y travaille.

Papy One

Conclusion : Vive la Marine.

 

Photos internet

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30 juillet 2015 4 30 /07 /juillet /2015 19:08
A little story of a saturation dive

Year of our Lord 1981.

It is now a few days that I’m aboard the DSV Tarasco who is currently working in the Gulf of the Mexico.

Marseille operations service has sent me here because apart my offshore work that I started again a few months ago, I also have a lot of experience in civil engineering which means thousands of diving hours without visibility and as I’ve heard that’s what the company is looking for because HERE in the GOM they say that the "vis" is very bad.

For several months now, the diving operations merely consists to realize hyperbaric welding pipeline connections and therefore during this first week on board I pass a lot of hours in the welding chamber to study all the type of gear and equipment I’m going to use underwater.

We are now a few days later and the Superintendent informs me that I am part of the team that has to enter in saturation at night.

Indeed, a new connection of two 36” pipelines that had recently been laid on the bottom by a lay barge has to be done.

The 'Sat' entry is expected around 22:00 and for the start of this new operation, only 9 divers will be compressed.

A little story of a saturation dive

The diving system of our DSV consists of three 2000 diam. deck compression chambers connected to a wet pot. Each chamber has four bunks but for comfort reasons the divers will be divided into them by teams of 3.

As we still have a few hours to go before the pressurization, each of us bustles to prepare his bunk with fresh sheets and bring the personal effects that will be needed during the stay.

Live at 3 people inside 2 meters diameter chamber is not very comfortable even more if we remove the 30 cm from the floor, it really leaves very little room, especially for the one who has to sleep on the top bunk. Generally it is the thinnest diver of the team that is sacrificed and designated to sleep at the top, although that some teams choose to make a rotation.

22 hours approach, after a final briefing with the superintendent we all go to the LST control room where some will take the opportunity to smoke a last cigarette. It’s time to enter our respective chambers. At the entrance the chamber operators make a last control to check our pockets to ensure that nobody carry illegal or hazardous products such as: cigarettes, matches, lighter, or alcohol. Sex magazines are of course allowed.

There it is, one of the life support technician starts the regeneration system and after having closed the door begins to compress the chambers with air up to the depth of 10 meters. This first part of the compression is designed to raise the partial pressure of oxygen to 420 mb. Then the diving system is pressurized with pure helium to the storage depth which for us today will be at 30 meters.

During the compression, the soda lime filter fan is switched on to help the mixing of ambient gases, but as this is not enough, we are asked to stir the atmosphere with our towels. As the storage depth is not deep, the compression speed can be done at about 1 m / min. which allow us to be at depth within 30 minutes.

It is now 23:00, and the supervisor is already calling us for a first dive.

The No. 1 chamber to which I belong has randomly been selected to do this dive and I am designated to be the diver one. My mate Laurent will be diver two and Samo will be our bellman.

The diver’s one role is to lead the dive. He is the one who speaks with the supervisor on the manner to do this or that and how it can be done.

The diver two is there to attend the diver one and he generally takes no decision on how to the conduct the operations. He also return to the diving bell in the middle of the dive and is then replaced by the bellman.

The bellman is the diver who stays in the bell to assist and monitor the divers. While Samo passes inside the bell to make the pre dive checklist Laurent and I go to wet pot to dress ourselves with our hot water suits and safety harness. Meanwhile, the supervisor reminds us via the intercom the purpose of our mission for this night dive:

- Search and localize the first 36 "pipeline.

- Mark it up.

- Align the pipeline along its final position.

The checklist is now completed and the bellman informs us that we can pass into the bell. Once inside, we settle on the tiny seats so that Samo can close the lateral door of the bell.

- Bellman: Surface door closed.

- Surf: Ok bellman I call someone from the chamber to come and close the other side.

Once the second door closed, the trunking located between the wet pot and the bell is depressurized and the bell is disconnected from the living chambers.

The surface team at their turn closes the outside lateral door and brings the bell over the moon pool where they still connect the guide cables.

The descent can begin.

During the descent, Samo monitors the pressure gauge of the side door to verify if the tightness is good. He also announced the depth every ten meters until the bottom door is slightly pushed open by the hydrostatic pressure and lets a little flush of water in.

- Bellman: Surface door open stop the bell

The diving bell is stopped and our bellman fully opens the bottom door, then by using the pressurization valve he lowers the water and at the same time asks to resume the descend until the bell comes at 4 to 5 m from the bottom. The different gas and hot water supply circuits are opened and Samo can now assist me to equip myself.

First connecting the hot water hose... Ah! I appreciate the arrival of this hot water at 35 ° c. It must be said that I began to really get chilly in this atmosphere of heliox.

- Me: OK Samo, you can put my KMB 17 on.

Once done I quickly test my gas supplies with the freeflow and the auxiliary non-return valves.

On the surface, the supervisor has connected me on a 12/88 heliox mixture so I dive with a PPO² between 400 and 800 mb.

- Me: HEUH! SAMO do not forget to put the locking pin in the neck clamp because I don’t want to lose my helmet as it arrived to some poor divers.

OK, that's good.

- Me: Surface, how do you read me?

- Surface: 5 on 5 diver one (D1).

- D 1: Ok, I'm ready to go; can you tell me on what side I am supposed to find the pipe?

- Surface: in principle at about 09:00 O’clock.

- D 1: Ok I’ll go out.

I slowly let myself go through the small bottom trunking and I find myself in the water.

- D 1: AAH! AAH! surfaaace ! What is this bullshit?

- Surf: Oh! What happens why do you scream like that?

- D 1: AAH! AAH! My eyes! I'm too much dazzled, they told me that here there was no visibility and I have at least 30 m to the level of the bell AAH!

- Surf: Francis stop making the fool and go to work.

- D 1: OK chief.

I let myself fall on the bottom and I start to move slowly towards the 9: 00 O’clock direction. While I walk on the bottom, I realize that the visibility decreases rapidly because of my movements on this muddy soil but nothing catastrophic as I still can see at 3 meters.

Ah! These French divers, it would do them good to come to our small Belgium and follow a diving course in our dark waters.

- D 1: Surface, can you ask the bellman if I still go in the right direction?

- Surf: Bellman… is the diver going to the right direction?

- Bellman: affirmative.

- Surf: OK for the direction Diver.

- D 1: Ok I continue.

A few moments later:

- Bellman: Surface... can you tell the diver that he is at the end of his umbilical.

- Surf: Diver you are at the end of your umbilical.

- D 1: Ok... I’ve found nothing... Say to the bellman to hold my umbilical tight because I'll start a circular.

- Surf: OK Diver.

- Bellman: Ok surface I keep it tight.

As I don’t think to be Cuckold as some other divers are, I suspected well that I would not find the pipe immediately. Slowly I begin to turn around the bell well taking care at my 50 m umbilical. Then after a certain time (time that takes the barrel of the gun to cool down) I see a dark mass appear in my field of vision. Here it is.

- D 1: Surface... that's it, I found the pipe.

- Surf: Bellman... can you tell me the direction of the diver’s umbilical?

- Bellman: 3:00 O’clock.

- Surf: Diver the pipe is at 3:00 O’clock.

- D 1: That’s what I suspected, you surely read your plan upside down.

- Surf: §; %,? O(( .. Diver can you give me the silting up of the pipe?

- D 1: Yes... silted up to half.

On the surface, the supervisor informs the project manager of the situation. He decides to move the boat.

- Surf: Diver... we are going to move the boat some 20 m towards the pipe.

- D1: Ok, tell the bellman to slowly recover my umbilical during the displacement.

- Surf: Bellman... we are going to move the boat towards 3: 00 O clock, you pick up the umbilical when needed.

- Bellman: understand will pick it up.

On the surface, the Chief informs the bridge that they can move the boat for 20 meters to starboard. As it is a dynamically positioned vessel, the officer in charge enters the data into the computer, and starts the maneuver.

On the bottom of the ocean, I hear that the thrusters are beginning to turn more regularly while that at the same time I can feel that Samo resumes my umbilical. After a few minutes the surface calls me:

- Surf: Ok Diver we have done 20 m.

- D 1: Ok well received.

- Surf: Francis, we are going to send you the basket with the pinger in it.

- D 1: Ok, did you install a strobe light on the basket?

- Surf: affirmative and there are also a few fluo light sticks on it.

- Surf: Ok diver, the basket comes down.

- D1: Coming down.

I put myself on the pipe and look towards the surface. After a few moments, I begin to see the flashes of the strobe in the middle of a green halo light, that's it here is the basket.

- D 1: Surface, I see the basket... ok continue to descend slowly. OK stop! Basket on the bottom.

- Surf: Stop! Basket on the bottom.

I go to the basket and take the pinger.

- D 1: Ok surface you can pick up the basket.

- Surf: Received.

- Surf: Francis, can you now move along the pipe with the pinger so that we can plot its exact position.

- D 1: Ok surface, I begin to walk along the pipe.

A little story of a saturation dive

While I move, the pinger sends an acoustical signal every second which is picked up on the surface and plotted on a chart.

I move along the pipe for about 300 m and from time to time ask to displace the boat so that I’ve not to work at the end of my umbilical.

While I’m walking on the bottom, my two colleagues gently discuss in the bell. But due to their breathe, their metabolisms will consume approximately 30 liters of oxygen per hour and produce about the same amount of CO². For the CO², no problem the bell is equipped with a scrubber that contains soda lime, a CO² absorbent but for the oxygen all the parameters are monitored by the surface and now the supervisor has noticed that the PPO² in the bell decreases, where his reaction:

- Surf: Bellman you make two additions of oxygen.

- Bellman: Ok two additions.

At the bridge, the superintendent realizes that the trace of my survey does not match with the final position the pipeline should have. It is located approximately 45 m out of his theoretical axis, result it will be necessary to slide the pipe.

- Surf: diver.

- D 1: Yes I listen

- Surf: Ok, we have to slide the pipe some 40 m to port over a distance of 300 m.

- To make the pipe lighter we are going to send you 10 T parachutes that you will fix every 30 m starting from the beginning.

- D 1: Ok well received, but as the pipe is half buried, I’ll need the Galleazzi and a needle to pull the slings under the pipe.

- Surf: Ok well received, we send you the water lance with the basket together with a first parachute.

- D 1: Ok understood, can you ask to diver two to prepare.

- Surf: Laurent, you can prepare yourself to help Francis to install the 10 T parachutes.

- D 2: Ok, I dress up.

In the meantime the basket is back at the bottom, I put the pinger back in it and recover the galleazzi water lance and the needle and I go to the place where I have to dig my first hole. There at some 5 meters from the pulling head I start to make a hole in the mud in order to facilitate the passage of my needle (rebar shaped at the diameter of the pipe) under the pipeline.

Once the lifting sling is in place and tight around the pipe I leave the place and move some 30 meters further to start the digging of the next hole and let Laurent fix the parachute and fill it by using the inflation line coming from the surface.

A little story of a saturation dive

During the four next hours, Laurent and I install the series of parachutes on the pipeline.

- D1: Ok surface all parachutes are in place and filled up.

- Surf: Ok divers we will now return at the beginning of the pipe with the boat and once in position we will let down the lifting cables from the three davits.

- D 1: Ok well understood.

While the DSV moves back to the pulling head we are on stand-by on the counterweight of the bell. I take advantage of that movement to go for a quick drink.

20 minutes later, the boat is in position.

- Surf: Ok divers boat is in place, we will start to descend the davit number one cable.

- D 1: Ok you come down on number one.

The three spaced cables are attached to the pipe in the same manner as the parachutes slings. An hour later:

- D 1: Ok surface all the davit cables are installed.

- Surf: Ok Divers we are going to slowly heave the pipe to the surface. In the meantime Laurent you will change with Samo and you Francis put yourself at shelter under the bell.

- D2: Ok I return to the bell pick up diver’s slack.

- D1: Ok I go under the bell.

- Surf: Bellman, Laurent comes back to the bell to change with you.

- Bellman: Roger.

A little story of a saturation dive

The pipe is now slowly brought to the surface with the 3 davits. This lift allows the pipeline to have a correct bending up to the touch down point, thus preventing it from breaking.

- Surf: Ok divers, the pipe is at the surface, we will start the shifting.

- D 1: Well received, we stay away.

The boat now moves laterally with 5 meters steps and this until the pipe is in the planned axis. It is now Samo who has joint me on the counterweight until the end of the displacement maneuver.

- Surf: Divers Ok, the pipe is in the axis, we start to bring it down.

- D 1: Ok surface coming down.

A few minutes later the pipe appears over our heads.

- D 1: Surface, I see the pipe it is at about 10 meters from the bottom you can continue to come down.

- Surf: Ok diver one I warn you as soon as we have no more tension on the cables.

- D 1: Ok.

Slowly the pipe sets down on the bottom but because of the surface sea state the pitching and the rolling of the boat is transmitted on the tube which rolls a bit around. Result: a cloud of silt is lifted and rapidly the visibility is reduced to nil.

- Surf: Ok divers, the pipe is laid back and there is slack in the cables. Francis you disconnect the davits and you Samo you start to deflate and recover the parachutes.

- D 1: Ok I do the davits.

- D 2: Ok I deflate the 10Ts.

Here we go again and this work will take us 2 more hours. Then finally I can announce:

- D 1: Ok surface the pipe is clear.

- Surf: Perfect guys you may return to the bell, dive completed.

As it is a little over 9 hours that I am in water, Samo proposes me to enter first. Thing that I accept gladly, "thank you Samo". But just before entering he taps me on the shoulder and makes me sign to watch in a given direction.

OOOUAHHH! Look at that. A bunch of small sharks are turning around the diving bell, there are at least a dozen of them.

- D1: Surface... we’re surrounded by small sharks... it is super nice to see.

- Surf: what! And you have not seen them on the bottom?

- D1: Well no, visibility was bad since the displacement of the pipe.

- Surf: Are they great?

- D1: No, they don’t go over a one fifty meter.

- Surf: It’s ok now we have no time to lose looking at little fishes. Enter the bell before that they eat up your ass.

I get through the hatch and to facilitate my entry Laurent opens the lower valve of the Swan neck which allows the water to rise some 0.4 m more in the bell.

As soon as I have my KMB 17 out of the water, I struggle due to fatigue to keep my head straight. I look a bit like David Niven in the brain and Laurent is obliged to straighten my head to be able to remove the helmet.

Whew! It’s done, I feel better.

A little story of a saturation dive

Once all my gear removed I give a hand to the bellman to tidy up the material before letting the diver two in.

OK, Samo at his turn is in the bell.

- Bellman: OOUAHH! SAMO LOOK: what happened to your fin?

- SAMO: Oh shit what is that?

In fact, the buckle of his left fin has disappeared to the level of the foot and from what’s left on it we can clearly see that it was ripped off by a beast that had some good teeth like a shark or big moray eel.

- Me: And you have felt nothing?

- SAMO: Well yes I felt something, but I thought that I had hanged something.

- Me: Well my friend for the same price you could have lost a few toes. So you see that what they told us on the surface «If you do not see the shark, he can't see you either» is just bullshit.

A few minutes later everything is tidy and all the unnecessary valves are close. The bellman chases the excess of water via the pressurization valve. He then inspects the gasket of the bottom door and finally closes it. Still a little blow of pressure to ensure the good sealing of the door and we are ready to go.

- Bellman: Ok surface door sealed you may pick up the bell.

- Surf: Ok coming up.

While the bell rises to the surface, we discuss everything and anything and of course about the fin. The bell is now at the surface, and we have to wait a few minutes more to be reconnected to the system.

Finally we hear the equalizing noise in the trunking and:

- Bellman: Ok surface, door open.

- Surf: Ok guys have a good night and thank you.

- Divers: Ok chief we hear you tomorrow.

Each in turn we slide through the small tube that brings us in the wet pot.

There the next bellman is already waiting to enter the bell to make the checklist.

At the microphone, Serge the chamber operator is giving us the menu.

- "Ok guys, today you have the choice between poo on crap or shit on poo."

I will take the first dish, anyway crap or not, food has anyway not much taste in saturation. But still a few days to go and maybe we will be entitled to something better because the catering just got fired.

While Samo and Laurent are discussing with the two following divers, I take the opportunity to take a nice hot shower, because I find that it's a little chilly in our chamber. It is true that 30 ° c in a heliox atmosphere is a bit low.

It now remains to take our meal and then jump in our bunks for a long sleep since we will be quiet for the next 15 hours.

Papy One

Photos and diving Art taken from internet.

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29 juillet 2015 3 29 /07 /juillet /2015 19:24

La collègue que j'aurais aimé avoir.
oh-les-beaux-yeux.jpg

An de grâce 1981.


Cela fait maintenant quelques jours que je suis arrivé à bord du DSV Tarasco qui travaille actuellement dans le golfe du Mexique.

Le service des opérations de Marseille m’a envoyé ici parce que hormis les travaux offshore, j’ai également une grande expérience de plongée en travaux publics en Belgique, ce qui signifie plusieurs milliers d’heures de plongée sans visibilité, et parait-il c’est cela qui est recherché au Mexique car ici la « visi »  est très mauvaise.

Pendant toute cette semaine passée sur le pont j’ai eu l’occasion de m’imprégner de l’ambiance qui règne à bord de la barge, mais je me suis également efforcé d’étudier le type de matériel et équipement qui est mis en œuvre sur le chantier.

Depuis plusieurs mois, les opérations de plongée, consistent principalement  à réaliser des connections de pipeline par soudure hyperbare et c’est une nouvelle opération de ce type qui va commencer cette nuit.

En effet, nous allons procéder au raccordement de deux pipelines de 36” qui ont été récemment posés sur le fond par une Lay barge.

Notre support naval dispose d’une tourelle de plongée et d’un ensemble de saturation composé de 3 caissons de 2 mètres de diamètre disposés en étoile autour d’un caisson humide.

L’ensemble des caissons se trouve sous le pont principal et la tourelle accède à la mer via le moon pool central du bateau.

L’entrée en « sat » de l’équipe, est prévue vers 22h00 et pour le début de l’opération, seul 9 plongeurs seront comprimés.

ensemble-de-sat-copie-1.jpg


Chaque caisson comporte 4 bannettes, mais pour des raisons de confort les  plongeurs seront répartis dans les 3 caissons par équipes de 3.

Comme nous disposons encore de quelques heures avant la mise en pression, chacun s’active à préparer sa couchette avec des draps frais et à amener les effets personnels dont il aura besoin pendant son séjour.

Vivre à 3 dans une enceinte de 2 mètres de diamètre, n’est pas très confortable surtout si l’on enlève encore les 30 centimètres du plancher, cela laisse vraiment très peu de place, surtout pour celui qui doit dormir sur le lit du haut.

Généralement c’est le plus mince de l’équipe qui est sacrifié et désigné d’office pour dormir en haut, bien que certaines équipes choisissent de faire un roulement.

22 heures approche, après un dernier briefing avec le conducteur de travaux, nous nous rendons dans le control room des caissons masters où certains en profiteront pour griller une dernière clope.

Avant d’entrer dans nos caissons respectifs, les caissons masters vérifient une dernière fois nos poches à fin de s’assurer que personne n’amène de produits illicites ou dangereux tels que : cigarettes, allumettes, briquet, ou alcool. Les bouquins de culs sont bien entendu autorisés.

Cette fois ça y est, le caisson master met le système de régénération en route, et après avoir fermer la porte, les caissons sont comprimés à l’air jusqu’à la profondeur de 10 mètres.

Cette première partie de la compression a pour but de faire monter la pression partielle d’oxygène à  420 mb.

Ensuite les caissons sont comprimés avec de l'hélium pur jusqu’à la profondeur du niveau vie qui se situe généralement 10 mètres plus haut que la profondeur de travail.

Comme le fond de la mer où nous allons opérer est de 40 mètres, le niveau vie dans les caissons sera de 30 mètres.

Durant la compression, le ventilateur du filtre de chaux sodée est mis en route pour favoriser le mélange des gaz ambiants, mais comme cela ne suffit pas, nous sommes priés de brasser les gaz à l’aide de nos serviettes de bain.

Etant donné que le niveau vie n’est pas profond, la vitesse de compression peut être d’environ 1 m / min. ce qui fait que nous atteignons le niveau vie en 30 minutes.

A 23 h 00, le chef de poste nous  appelle déjà  pour réaliser une première plongée.

Le caisson n° 1 dont je fais partie est tiré au sort.

Je suis désigné comme étant le plongeur n° 1, Laurent est plongeur n° 2 tandis que Samo la moustache est désigné comme bellman.

Le rôle du plongeur n° 1 consiste à diriger toute la plongée, c’est lui qui discute avec le chef de poste sur la manière de faire tel ou telle chose.

Le plongeur n° 2 est là pour assister le plongeur n° 1 et il ne prend généralement pas de décision quant au déroulement des opérations.

En milieu de plongée, le plongeur n° 2 rentre à la tourelle et se fait alors remplacer par le bellman.

Le bellman est le plongeur désigné pour rester dans la tourelle à fin d’aider et de surveiller les plongeurs.

Pendant que Samo passe dans la tourelle pour faire la check-list avant plongée, Laurent et moi passons dans le wet pot (caisson humide) pour mettre nos vêtements à eau chaude et nos harnais de sécurité.

Pendant ce temps, Marcel le chef de chantier, nous rappelle via l’interphone quelle sera notre mission pour cette plongée de nuit : recherche du premier pipeline de 36 ” / balisage / alignement du pipeline le long de son tracé final.

Une fois la check-list terminée, Samo nous informe que nous pouvons à notre tour passer  dans la tourelle.

Après que nous nous sommes installés sur les minuscules sièges, le bellman ferme la porte latérale de la tourelle et en informe de chef de poste, qui à son tour demande alors à l’un des plongeurs au repos de venir fermer la porte du caisson humide.

Le sas intermédiaire situé entre le wet pot et la tourelle est alors décomprimé et la tourelle déconnectée de l’ensemble vie.

En surface, l’équipe d’assistance renferme la porte latérale extérieure de la tourelle et assure la translation de celle-ci jusqu’au moon pool.

Après avoir connecté les 2 câbles guides, la tourelle est ensuite descendue le long de ceux-ci.

Durant la descente, Samo surveille le manomètre de pression de la porte latérale à fin de vérifier que l’étanchéité de la porte latérale est bonne.

Il annonce aussi la profondeur tous les 10 mètres et ce  jusqu’à ce que la porte inférieure s’ouvre légèrement à cause de la pression hydrostatique et laisse passer un peu d’eau.

La tourelle est alors stoppée et notre bellman ouvre entièrement la porte inférieure, ensuite il chasse l’eau à l’aide de la vanne de pressurisation et refait alors descendre doucement la tourelle jusqu’à 4 à 5 m du fond.

Les différents circuits d’alimentation en gaz et en eau chaude sont ouverts, et Samo peut maintenant me donner un coup de main pour m’équiper.

D’abord brancher le flexible d’eau chaude.Ah!que cela fait du bien cette arrivée d’eau chaude à 35°.

Il faut dire que je commençais à vachement me refroidir dans cette atmosphère d’héliox.

Ok Samo, maintenant tu peux me mettre le KMB 17.

Voilà qui est fait.

Je teste rapidement mon arrivée de gaz au niveau du free-flow ainsi que par la vanne du biberon secours.

En surface, le chef de poste m’a branché sur un mélange héliox de 12/88 de manière à ce que je plonge avec une PPO²  comprise entre 400 et 800 mb.

Euh !! Samo n’oublie pas de me mettre la goupille de sécurité car je n’ai pas envie de perdre mon casque comme certains malheureux plongeurs.

OK , c’est bon.

Moi : Allo surface, est-ce que tu me reçois ?

Surf : 5 sur 5 plongeur 1.

Pl 1 : Ok, je suis prêt à sortir, tu peux me dire de quel coté je suis sensé trouver le pipe ?

Surf : En principe vers 9 h.

Pl 1 : Ok je sors et je pars vers 9 h.

Surf : Ok tu pars vers 9 h.

Je me laisse doucement descendre au travers du hub de 80 cm, et je me retrouve dans l’eau.

Pl 1 : AAH !! AAH ! surfaaace qu’est-ce que c’est cette connerie ?

Surf : Qu’est-ce qui se passe pourquoi tu gueules comme ça ?

Pl 1 : AAH !! AAH !!  mes yeux !!! je suis trop ébloui, on m’avait dit qu’ici il n’y avait pas de visi et  j’ai au moins 30 m au niveau de la tourelle AAH !!

Surf : Francis arrête de faire le mariole et va travailler.

Pl 1 : Bien chef.

Bon, je me laisse tomber sur le fond et je commence à me déplacer doucement vers 9h tout en surveillant la direction de mon narghilé.

Pendant que je me déplace sur le fond vaseux, je me rends compte que la visibilité diminue rapidement à cause de mes mouvements dans la vase, mais rien de catastrophique puisque je vois au moins encore à 3 mètres.

Ah ! c’est sacré français tout de même, ils feraient bien de venir faire un petit stage de plongée chez les belges à l'IFPME.

Pl 1 : Surface, tu peux demander au bellman si je vais toujours dans la bonne direction ?

Surf : Bellman ... est-ce que le plongeur va toujours dans la bonne direction ?

Bellman : Affirmatif.

Surf : Affirmatif plongeur.

Pl 1 : Ok je continue.

Quelques instants plus tard.

Bellman : Surface ... tu peux dire au plongeur qu’il est en bout de narghilé.

Surf : Plongeur tu es en bout de narghilé.

Pl 1 : Ok ... je n’ai rien trouvé ... Dis au bellman de tenir le narghilé tendu car je vais faire une circulaire.

Surf : Ok plongeur.

Bellman : Ok surface je tiens le narghilé tendu.

Comme je ne pense pas être cocu comme certain, je m’en doutais bien que je n’aurais pas trouvé le pipe directement.

Je commence à tourner lentement autour de la tourelle en prenant bien garde de tendre mon narghilé de 50 m.

Au bout d’un certain temps (temps que met le fût du canon pour se refroidir) je vois apparaître une masse sombre dans mon champ de vision.

Ca y est, cette fois je le tiens.

Pl 1 : Surface .... ça y est, j’ai trouvé le pipe.

Surf : Bellman .. tu peux me dire vers quelle heure part le narghilé ??

Bellman : 3 h.

Surf : plongeur le pipe est à 3 h.

Pl 1 : Je m’en doutais, tu as sûrement lu ton plan à l’envers.

Surf : § ;%, ?O(( .. Plongeur tu peux me donner l’envasement du pipe ?

Pl 1 : Oui ... envasé jusqu’à la moitié.

En surface, le chef d'équipe informe le COH de la situation.

Celui-ci décide de faire bouger le bateau.

Surf : Plongeur .... on va déplacer le bateau  vers le pipe de 20 m.

Pl 1 : Ok , dis au bellman de reprendre mon narghilé au fur à mesure du déplacement.

Surf : Bellman... on va déplacer le bateau vers 3 h ... tu reprends doucement le narghilé.

Bellman : bien compris je reprends le narghilé.

En surface, le chef de poste informe la passerelle qu'on peut déplacer le bateau de 20 m vers tribord.

Comme il s’agit d’un bateau à positionnement dynamique, l’officier de quart entre les données dans l’ordinateur, et démarre la manœuvre.

Sur le fond de l’océan, j’entends que les thrusters commencent à tourner plus régulièrement tandis qu’en même temps je sens que Samo reprend le narghilé.

Au bout de quelques minutes la surface m'appelle :

Surf : Ok plongeur on a fait les 20 m.

Pl 1 : Ok bien reçu

Surf : Francis, on va te faire descendre le panier avec une balise.

Pl 1 : Ok , est-ce qu’il y a une luciole sur le panier ???

Surf : Affirmatif.

En surface, l’équipe de pont a préparé le panier de travail avec un pinger et attend l’ordre de le descendre.

Surf : Ok plongeur, le panier descend.

Pl 1 : Bien reçu.

Je me mets sur le pipe et je scrute dans la direction où doit arriver le panier.

Au bout de quelques instants, je commence à apercevoir des flashs et un halo de lumière verte, ça y est, voici le panier.

Pl 1 : Surface, je vois le panier ... ok continue à descendre doucement. ok stop! panier sur le fond.

Surf : Stop ! panier sur le fond.

Je me rends vers le panier et je retire le pinger.

Pl 1 : Ok surface tu peux faire remonter le panier.

Surf : Ok reçu.

Surf : Francis, tu vas te déplacer le long du pipe avec le pinger comme cela on pourra connaître son orientation exacte.

Pl 1 : Ok surface, je commence à me déplacer le long du pipe.

 plongeur-pinger.jpg
Pendant que je me déplace, le pinger envoie un signal qui est capté en surface et reporté sur la carte.

Je me déplace ainsi sur environ 300 m tout en faisant doucement déplacer le bateau de manière à ce que je ne travaille pas en bout de narghilé.

Pendant que je me déhale ainsi sur le fond, depuis environ 1h30, Samo et Laurent continuent à respirer dans la tourelle, chaque métabolisme va consommer environ 30 litres d’oxygène par heure et produire environ la même quantité de CO².

Pour le CO² , pas de problème la tourelle est équipée du scrubber (filtre à chaux sodé) mais en surface, le chef de poste s’aperçoit que le PPO² diminue, d’où sa réaction.

Surf : Bellman tu fais 2 rajouts d’oxygène.

Bellman : Ok 2 rajouts.

A  la passerelle, le conducteur de travaux se rend compte que le tracé de mon survey ne correspond pas à l’emplacement final que doit avoir le pipeline.

Celui-ci se trouve à environ 45 m de son axe théorique, résultat il va valoir riper  le pipe.

Il en informe le chef de chantier qui à son tour avertit le chef de poste.

Surf : Plongeur.

Pl 1 : Oui j’écoute

Surf : Ok, il va falloir riper le pipe de 40 m vers bâbord sur une distance de 300 m.

Pour alléger le pipe, on va te descendre des parachutes de 10 T que tu fixeras tous les 30 m en partant de l’extrémité.

Pl 1 : Ok bien reçu, mais comme le pipe est envasé, il me faudra la galléazzi et une aiguille pour passer le élingues sous le pipe.

Surf : Ok bien reçu, on te mettra la galléazzi à coulisser sur le câble du panier en même temps qu’un premier parachute.

Pl 1 : Ok bien reçu, et tu peux demander à Laurent de se préparer.

Surf : Laurent, tu peux te préparer pour donner un coup de main à Francis pour installer les parachutes.

Pl 2 : Ok, je m’équipe.

Entre-temps, le panier est arrivé au fond, j'y remets le pinger, je récupère la lance galléazzi et je me rends en début de pipe à environ 5 m de la tête de traction.

Là, je commence à faire un trou dans la vase de manière à pouvoir passer mon épingle (fer à béton cintré au diamètre du pipe) plus facilement sous le pipeline.

Dès que la sangle est en place, le plongeur 2 fixe le parachute et le gonfle à l’aide de la ligne de gonflage qui nous arrive de la surface.
 

mise-en-place-parachute.jpg
Pendant les 4 heures qui suivent, Laurent et moi installons la série de parachutes le long du pipeline.

Pl1 : Ok surface tous les parachutes sont en place et gonflés.

Surf : Ok on va maintenant retourner au début de la ligne avec le bateau et on va descendre les câbles des 3 daviers de relevage.

Pl 1 : Ok bien compris.

Pendant que le bateau se déplace à nouveau vers l’origine du pipeline nous nous mettons en stand by sur les contrepoids de la tourelle.

J’en profite également pour boire un coup.

20 minutes plus tard, le bateau est en position.

Surf : Ok plongeurs le bateau est en place, on va commencer à faire descendre le câble du davier numéro 1.

Pl 1 : Ok on descend le numéro 1

Les trois câbles espacés d’une quinzaine de mètres sont ainsi élingués au pipe de la même manière que les sangles des parachutes.

Une heure plus tard.

Pl 1 : Ok surface les câbles de davier sont installés.

Surf : Ok plongeurs  allez vous mettre à l’abri sous la tourelle, on va remonter doucement le pipe jusqu'en surface.

Pl 1 : Ok reçu

Surf : Plongeur 2 tu va rentrer à la tourelle pour changer avec Samo.

Pl 2 : Ok je rentre à la tourelle.

Surf : Bellman, Laurent rentre pour changer avec toi.

Bellman : Bien reçu on change.
 

plongeur-tourelle.jpg
Pendant ce temps, le pipe est  remonté lentement en surface à l'aide des 3 daviers.

Cette remontée permet au pipeline d'avoir un angle correct jusqu'à l'endroit du touch down, ce qui lui évite de se casser.

Surf : Ok plongeurs, le pipe est en surface, on va commencer le ripage.

Pl 1 : Bien reçu, on reste à l'abri.

Le bateau se déplace maintenant latéralement par pas de 5 mètres et ce jusqu'à ce que le pipe se trouve dans l'axe prévu.

C'est maintenant Samo qui me rejoint sur les contrepoids en attendant la fin de la manœuvre de déplacement.

Surf : Ok plongeurs, le pipe est dans l'axe, on va commencer à le faire descendre.

Pl 1 : Bien reçu.

Quelques minutes plus tard le pipe apparaît.

Pl 1 : Ok surface, je vois le pipe il est à 10 mètres du fond tu peux continuer à le poser.

Surf : Plongeur 1 je t'avertis dès que la tension des câbles est à zéro.

Pl 1 : Bien reçu.

Le pipe se pose lentement sur le fond, mais à cause de l'état de la mer, le tangage et roulis du bateau se répercute sur le tube et celui-ci danse un peu sur le fond, ce qui a comme conséquence de soulever un nuage de vase qui réduit directement la visibilité à zéro mètre.

Surf : Ok plongeurs, le pipe est posé, Francis tu défais les daviers et toi Samo tu commences à dégonfler les parachutes.

Pl 1 : Ok je fais les daviers.

Pl 2 : Ok je dégonfle les 10 T.

Nous revoilà donc partis tous les deux à procéder au démontage des daviers, et ensuite à l'enlèvement et la récupération de tous les parachutes.

Ce travail va à nouveau nous prendre 2 bonnes heures.

Pl 1 : Ok surface le pipe est clair.

Surf : Ok les gars bien travaillés vous pouvez rentrer dans la tourelle.

Comme cela fait un peu plus de 9 heures que je suis dans l'eau, Samo m'invite à rentrer le premier. Chose que j'accepte volontiers,"merci Samo".

Mais voilà que brusquement Samo me tape sur l'épaule et me fait signe de regarder dans une direction donnée.

OOOUAHHH !!!! Chouette alors une bande de petits requins tournent autour de la tourelle, il y en a au moins une dizaine.

Pl1 : Surface.... on est entouré d'une bande de petits requins.... c'est super chouette.

Surf : Quoi ! vous ne les avez pas vu  sur le fond ?

Pl1 : Ben non il n'y avait plus assez de visi depuis la pose du pipe.

Surf : Est-ce qu'ils sont grands ??

Pl1 : Non, ce sont des requins pour PD ils ne font pas plus d'un mètre cinquante.

Surf : Bien allez rentrer maintenant avant qu'ils ne vous bouffent le culs.

Je rentre dans la tourelle, pour faciliter ma rentrée, Laurent ouvre la vanne du col de cygne, ce qui permet à l'eau de monter d'environ 0,4 m dans la tourelle.

Dès que j'ai le KMB 17 hors de l'eau, j'ai du mal à garder la tête droite à cause de la fatigue, je ressemble à David Niven dans le cerveau, Laurent est obligé de me redresser la tête pour pouvoir m'ôter le casque.

Ouf, voilà qui est fait, je me sens mieux.

plong-e-tourelle-copie-2.jpg


Une fois déséquiper, je donne un petit coup de main au bellman à fin de tout ranger avant de faire rentrer le plongeur 2.

Ok, Samo est à son tour dans la tourelle.

Bellman : OOUAHH ! Samo qu'est-ce qui est arrivé à ta palme ???

Samo : Oh merde alors c'est quoi ça ?

En fait, toute  la voilure de la palme gauche a disparu jusqu'au niveau du pied et d'après la forme on voit clairement que cela a été arraché par une bébête avec de bonnes dents style requin ou grosse murène.

Francis : Et tu n'as rien senti ?

Samo : Ben si, j'ai bien senti quelque chose, mais je croyais que je m'étais accroché.

Francis : Eh bien mon gars, pour le même prix tu aurais pu avoir quelques orteils en moins.
Donc tu vois que ce qu'ils nous ont dit en surface du genre  "si vous ne voyez pas le requin, lui ne vous voit pas non plus" c'est de la connerie.

Lorsque tout est bien rangé et les vannes d'alimentation fermées, le bellman chasse l'excédant d'eau via la vanne de pressurisation, puis inspecte le joint de la porte inférieure et la renferme doucement.

Encore une petite pressurisation pour assurer le plaquage de la porte et nous voilà prêt à remonter.

Bellman : Ok surface porte plaquée, vous pouvez  remonter la tourelle.

Surf : Ok on vous remonte.

Pendant que la tourelle remonte, nous discutons de tout et de rien et bien sur de la palme.

En surface, l'équipe s'active à clamper la tourelle au caisson humide, et finalement nous entendons le bruit du vérin hydraulique qui assure le verrouillage final de l'ensemble.

Il ne reste plus qu'à comprimer le sas et nous voilà près à repasser dans notre petite maison.

Bellman : Ok surface, porte ouverte.

Surf : Ok les gars bonne nuit et merci.

Nous passons tour à tour dans le wet pot, où l'on croise le bellman de la seconde équipe qui se prépare à rentrer dans la tourelle pour faire sa check-list.

Au micro, serge le caisson master vient nous annoncer le menu. "Ok les gars, aujourd'hui il a le choix entre du caca sur de la merde, ou de la merde sur du caca."

Moi je choisis le premier plat, de toute façon merde ou pas, la nourriture n'a de toute façon pas beaucoup de goût en caisse, mais comme disent les Français, on mange aussi avec les yeux.

Enfin, encore quelques jours de patience et on aura peut-être droit à quelque chose de mieux car l'ensemble du catering c'est fait virer.

Pendant que Samo et Laurent discutent avec les 2 plongeurs suivant, j'en profite pour prendre une bonne douche bien chaude, car je trouve qu'il fait un peu frisquet dans notre caisson.

C'est vrai que 30 ° c'est un peu juste.

Il nous reste maintenant à prendre notre repas, et ensuite un gros dodo puisque nous sommes maintenant tranquilles pour une quinzaine d'heures.


Papy One

Photos et Diving Art trouvé sur internet (auteurs inconnus)

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9 juillet 2015 4 09 /07 /juillet /2015 21:42
Viva Espana or the Story of my first bounce dive

Barely a week after returning from my first offshore job, my boss Michel was already on the phone to tell me that I had to go back on JB4.

- What do you mean with I have to leave for the North Sea I told him, this is not what was agreed between us.

- You had told me that a month work equals two weeks on leave at home and today it's only a small week that I’m back, so sorry I do not move before a week.

Michel didn’t look too happy as he simply said ”well fuck it” then hanged up.

That’s it, it begins well I thought, I hope he will not punish me and leave me a few weeks at home. But there was no fear to have because in those days offshore was booming and demand for divers was such that companies did not hesitate to send anyone offshore as long as they had already put their head under water.

Result; a few days later in the morning of February 12, I again received a phone call from Fladas.

- Hi Francis, this is Michel.

- did you spend a good leave?

Then immediately he asked me if I had some English.

Ten years earlier during my military commitment I had been very fond of the little English girls who were coming in Ostend to have some fun and thanks to her had learned the rudiments of this beautiful language. But since then, the circumstances were that I had no more used it until the day where a few weeks earlier I had for the first time been approached by Fladas.

Since then I studied it again intensely and thanks to Assimil, I could say:

- Yes I do, I am defending myself, why?

- In this case, I have a project for you in Spain on a drillship where there is a team of French divers on board but none of them speak English properly and the client begins to be mad about it.

- So if you are interested you can leave tomorrow morning.

That’s so that the next day I found myself at the Barcelona Airport where I was assisted by a charming young girl who worked for the local representative of the client.

She was there to tell me that I had to pass the night in town and therefore led me to a nice little hotel located on the Rambla.

As one can imagine this didn’t bothered me at all and so in the evening I went looking for a little restaurant and quickly discovered that Barcelona was not a bad city.

Viva Espana or the Story of my first bounce dive

The next day, at nine in the morning, Dolores was there again with her car to bring me with a concert of honks on the horn to the port.

There the Smit Lloyd a Dutch tug was waiting the staff for the changeover of a part of the barge crew. The Captain of the vessel was also Dutch and as I perfectly mastered this language the contact was fairly easy and very quickly I was entitled to a special treatment during the two hours that lasted the travel.

Around thirteen hours, the GLOMAR V was in sight.

Viva Espana or the Story of my first bounce dive

It was a drillship with a large derrick at her center.

Once on board, I made acquaintance with the team that I had to strengthen.

There were, Raphael, the diving supervisor as well as Noel, Philippe and Serge the three young divers.

- Hi, the team leader said, it is true that you speak fluent English?

- UH yeah, my English is ok

- Phew! Happy that you’re here, we will finally be able to understand what they are asking us to do.

As I had not yet had dinner, the team invited me to follow them to the mess. In the queue as well as around the tables a lot of Drillers, Rough-Necks and American Roustabouts were speaking loudly.

Once served, I sat down at the table of my new colleagues and began to eat.

Yuck, what’s this strange taste?

Immediately, I seized my glass of artificial fruit juice and tried to rinse my mouth.

But, ugh, my drink had the same extremely unpleasant taste.

- What is this I asked wondering?

- That! Raphael replied smiling: its diesel.

- A few days ago these fools have done a big mistake during the refueling supply and have started to fill the water tanks with fuel oil.

- Once they realized their mistake, they have rinsed the tanks several times but nothing helped.

- Everything we swallow stinks to death.

- Even the water from the shower smell to fuel.

- In addition, you have no chance because here we cannot even have drinks in bottles; everything comes from the ship tanks.

Charming I thought, and say I'll have to undergo this for a month. Then Philippe one of the divers added:

- For the food, you can spice it abundantly, and for the water you add lots of sugar, you'll see that hides a little the bad taste.

I followed his advice but the result was not very convincing.

After this first shit meal, the team showed me where we had our quarters. There also, I was not lucky. The Americans had parked the divers into the bottom of the hold in a small cubbyhole near machines that never stopped turning.

There, in what they dared to call a cabin, they had installed four steel beds they had probably recovered in one or the other discharges. Frankly, apart from the team leader who was a little better installed than us, it was not really funny.

It was obvious that the Yankees did not like us.

In addition, this wasn’t going to improve with my arrival on board because unfortunately I wasn't the last one to do bullshit.

Indeed, the day after my arrival I had noticed that there was a toasting machine in the mess but unlike the classic machines that I knew, this was a rotating one which allowed to continuously roast a great number of bread slices.

To do this, it was enough to put the slice of bread on a vertical moving support where it was kept in place by a little clip. The slice then followed the convoy of the others, passed over the top of the machine and then stung at the back side where the electric grill stood, then, a few tens of seconds later reappeared on the front face where you could retrieve your bread well roasted.

For two or three minutes I study this machine and tell myself that thanks to her I’m going to make a tasty croquet-monsieur.

Neither one nor two, I am preparing my sandwich with a double slice of cheese and ham that I generously butter on both external sides, that I then gently place on the grill.

That’s it; my toast is gone and just passes on the invisible side of the toaster.

Already my mouth is watering at the thought of the feast that awaits me.

I wait.

Strange, the toast of the guy who was behind me just arrived and not mine. As it could not pass in front of mine, I tell myself that I've certainly miscounted.

However, I do feel quite uncomfortable. I have the impression that something has messed up in the maneuver as a strange burning smell as well as some smoke starts to come out of the toaster. Shit what can I do? By reflex, I pull the plug from the electrical outlet, but it's too late, the damage is done.

The machine has not supported the weight of my huge sandwich which has fallen from its support and is now stuck against the red-hot grill.

The smoke in the mess becomes more and more important and the few people who are eating start to yell at me.

It is now the turn of the Cook to come and see what can be done. Not much if it is dropping the blocked slices with a long kitchen utensil.

Bang! The door of the refectory opens with a loud crash and a quite strong guy enters in shouting. It’s the Tool Pusher. I realize that I’ll get canned and I try to get tiny.

The guy starts yelling at me in a jargon which I didn’t understood except the last words that were YOU STUPID FROGGIE, NEXT TIME YOU GO! AND NOW EVERYBODY OUT OF HERE! Needless to say that this incident did not improved the relations between France and America.

In regards to the job, as I said, we were here on a drilling ship and the beginning of my stay on board, nearly coincided with the drilling of a new hole and therefore I could follow the various phases of work that would gradually bring the drill bit to a possible pocket of gas or crude oil.

For the time being, the temporary base plate had been installed and a drill was underway to drive the 30-inch casing.

On a drilling vessel, all these works are done diverless and the role of the diving team merely consisted to wait for any incident to happen on the wellhead. However, over the following days, or rather the nights we were repeatedly waked up by the Tool Pusher who loved to send us make observation dives with the bell in order to verify the good implementation of the different elements. In principle, these dives were not really necessary because the wellhead was equipped with an underwater camera that allowed to continuously monitor the installation.

But okay, probably that the client wanted to get his money’s worth and thus wanted to see the divers in the water.

For me, apart from having to get up at 2 o’clock in the morning, I was pleased to do this kind of atmospheric diving because once at the bottom of the Mediterranean, I had the impression of being in the midst of an aquarium in which evolved a multitude of fish attracted to the spotlights of our bell.

Then finally some bad weather arrived and a few days later a first series of problems appeared on the wellhead.

Firstly, one of the four guide wires serving to align the equipment during their descent had broken. Secondly, the underwater camera guide wires were tangled around the blowout preventer stack. Thirdly a seal on the kill line was leaking.

Result, the Pusher Tool gave us a briefing on what he wanted us to do at the bottom and then asked us to dive as quickly as possible to get order in all this mess.

As I had never done this type of intervention, I insisted to make this dive.

Raphael agreed but immediately added:

- You can do the dive but please do not lose time because here we are not in saturation and every minute spent at the bottom will extend your decompression time.

- No problem, I'll try to do it as quick as I can.

Then after this short briefing, Philippe my bellman and me went to equip ourselves rapidly.

Our diving suits were old Dunlop rubber suits, identical to those that I had used in the navy.

Viva Espana or the Story of my first bounce dive

The suit entry had to be done by the neck, and then once fully dressed the seal was then made by a thin neck seal. As for the band mask it was the black MK1 equipped with a removable face glass, one of the first face masks manufactured by Comex.

Fifteen minutes later, we were both in the diving bell, ready to be send down.

- Ok guys are you ready?

- Ok surface it’s when you want.

Slowly, the winch begins to raise the bell for about half a meter which is enough to allow us to close the external bottom door. Then once this secured, the portico slowly resumes its failover and bring us over the water.

- Ok guys, Raphael said, I'm starting to bring you down, be sure to check the tightness of the door!

Viva Espana or the Story of my first bounce dive

After a few meters Philippe announces:

- It's good for the door.

While my colleague is monitoring the external pressure gauge, I’m watching through one of the portholes from where I can now perfectly distinguish the six steel cables that plunge to the bottom of the sea.

A few tens of seconds later, we have reached the depth of 80 meters. Philippe stops the descent. Water is really clear and we can perfectly see the wellhead that’s located at a dozen meters from the bell. Through the comm’s, Raphael asks me if I spotted the new cable that I have to change?

- Affirmative, I see it well; the end of the cable is about two meters above the guidepost.

- Good in this case, you can equip yourself, everything here on the surface is ready.

I test my eardrums one last time by a Valsalva maneuver to make sure that they pass easily and then let the bellman equip me with the little bailout bottle, lead belt, fins, gloves and finally the band mask without his front glass.

One thing worries me a bit, my diving suit has neither inflator nor relief valve and so I hope that the lead belt will have the proper weight.

- Don't worry about it, my teammate says, it is just what you need, neither too much nor too little. Here it is! I'm ready. As last recommendation the supervisor reminds me to put three fingers in one of my cuffs to avoid the squeezing of my suit, but also with my other hand begin to balance my ears at the start of pressurization.

- Ok bellman I’m ready, when you want!

- Ok let’s go, five, four, three, two, one, go.

Philippe opens the high pressure quarter turn valve fully.

Immediately the air begins to be replaced by a mixture of heliox 16/84. The noise in the diving bell is deafening.

I already feel the effects of the pressure on my eardrums and immediately begin to blow heavily into my nostrils.

Very quickly also, under the effect of pressurization, the temperature in the bell begins to climb. Gosh! I never get down as quickly. The compression speed must not be far from sixty meters per minute and I don’t stop to balance.

Suddenly, the bellman strikes me on the shoulder.

I lift my head and see that he shows me the inner pressure gauge that comes just to pass the seventy meters then the bottom door.

I have understood the door will soon open. I have interest to not stay on it, otherwise I risk to immediately fall into the water.

Eighty meters, the door falls open under the effect of the equilibration. Philippe immediately closes the HP valve and then asks me with a voice of Donald Duck if I am alright.

Due to the rapid compression, the inside temperature must now exceed the 50 °c. It’s so hot in here that I have the impression of being in a sauna and I’m completely drenched in sweat.

But nevertheless I find that my mind his still clear and therefore make him an OK hand sign while telling him that he can fix the glass of my mask.

- Surface, how do you read me?

- Loud and clear Francis.

- Ok, I'm ready to go.

- Perfect let’s start.

Slowly, I let myself slide through the hatch. Immediately, I am surprised by the low temperature of the water that gradually enters into my gloves and neoprene hood.

Carefully, I grab one of the bell guide cables and begin to descend towards the counterweight. Once on it, I check my buoyancy because I do not want to do a blowup to the surface as it happened to another diver some years earlier with unfortunately the consequences that can be guessed.

It's perfect; I'm slightly too heavy so no risk. Within a few seconds, I am at the level of the camera cables.

Because of the swell, they get stuck under the BOP but their release presents no difficulty and in a few minutes they are cleared.

I now swim to the guide post above which the cable that I need to reinstall swings.

First thing to do, open the small door which is located in the upper part of the column.

- Surface!

- I listen Francis.

- come down two meters at the cable so that I can retrieve the hammer and spanner that are fixed on it.

- Understood, we come down two meters.

Strange, it’s barely twenty minutes that I am in the water, but already the cold begins to be felt. This is of course due to the helium present in my breathing mixture which has a high thermal conductivity and therefore tends to cool me from the inside but also the from fact that I started my dive with sweat soaked under garments and this of course isn’t helping the situation.

Due to the cold I already have to concentrate on what I have to do. I attack the loosening of two screws.

Shit! Why have these cons on the surface tight them so strongly.

Bang! Bang! Finally after a few more sledgehammer beats, the bolts become looser and looser. In my earphones I can hear the supervisor that reminds me to take care to not lose them.

Viva Espana or the Story of my first bounce dive

Allright, the door is open and I can now go down to 86 meters, at the level of the base plate to pass the cable lug inside the guide post funnel, then while sliding the slack into the groove come back again to the top of the structure.

- Ok surface, the cable in position, I close the door.

My hands are shaking by the cold and my movements are becoming increasingly messy. I have to make several attempts to correctly adjust my Allen key. Still a few hammer beats on the key to tighten everything and I can announce:

- Surface, cable in position, door closed and tighten!

- Good Francis, take care we are going to set the cable under tension.

Hardly had Raphael said these words than suddenly the cable stretched violently and passed in front of me at lightning speed.

Shit! That was a close call. If I had been one foot more forward, for sure, I would have been cut in two.

- FUCK SURFACE! What is this for a lousy operation you have done?

- Euh! I believe that these fools have dropped the counterweight a little too fast, you have nothing?

- No I’m okay!

- Ok Francis, can you still go on the kill line and watch if you see a leak of oil at the level of the connection?

- Ok, I'll go. Give slack to the umbilical!

After a few tests on the line I can effectively confirm the leak but as I can do nothing to it the supervisor announces that my dive is over.

I don’t complain and I am eager to return to the bell to get warm.

As time continues to turn it is necessary to not lose time with my recovery. Therefore, the bellman has already filled the bottom of the bell with water to facilitate my entry.

Once inside, I makes myself quite small so that my colleague can immediately flush the water and close the internal door. Here it is, it's done. He announces:

- Surface, door closed I put a little pressure in the bell to have a seal.

No sooner said than done.

- Ok surface its tight; you can pick up the bell.

- All right guys we begin the ascent.

While the bell ascends to the surface, Philippe now hastens to remove my gear.

- So how was your dive?

- Good I said shivering, but I was really cold, nothing better than a hot water suit.

- Well that my friend I don’t think we are ready to have. We are here on a drilling support and as you’ve seen we have almost no material. A few months ago we have had the possibility to test a garment heated by electric resistances, but it was so under developed that the divers have had their balls burned up to the second degree.

Our little conversation was abruptly interrupted by the surface which announced that the bellman could start the decompression of the bell with the 87 meters decompression table and a bottom time of 80 minutes.

A quick glance at the table told us that we had some 12 hours of decompression. Apparently the bellman had a good experience with bounce diving as he immediately opened the bleed off valve that would allow us to go back in more or less three minutes to the depth of our first level which stood at 48 meters.

From there on, we had to put on the oral masks and breathe a mixture of 23/77.

The diving bell was now at the surface and ready to be connected to the decompression chamber. This maneuver was far from easy, because the hatch of the decompression chamber was on its upper part which meant that to position the clamp and tighten it; our outside colleagues had to lie down on their stomach.

This of course, was not the best of positions to give the vigorous sledgehammer beats that were needed for the proper closure of the clamp.

Jokingly, Philippe begged his colleagues to tight the clamp correctly because he said he didn’t want to be put in orbit after the pressure equalization.

Perhaps, did he had a premonition of what unfortunately was going to happen a few years later in Norway on the Byford Dolphin barge where 5 colleagues of the company lost their live instantly. Today, fortunately everything went well, the internal pressure of the bell and the access hatch were now equal to the pressure of the chamber and so we could finally make a TUP to pass into the DDC to complete the rest of our decompression more comfortably.

But despite this rudimentary comfort the decompression was not less stressful. This was of course due to the many breathing sequences of pure oxygen that at the end had a tendency to irritate our poor lungs.

Then finally some 12 hours later the door of the chamber opened.

The Tool Pusher was there at the entrance.

Shit! I thought what does he still wants?

But surprisingly the only words that came out of his big mouth were:

- Good work guys!

And then he immediately left for the drill floor.

Suddenly, he became a little nicer to me.

A few days later, it was the turn of our supply boat to have a problem and the captain asked us if we could come and do an inspection on one of its propellers. No problem and so an hour later the complete team was aboard the Smit Lloyd.

Under water, nothing serious, just a piece of polypropylene rope some 20 meters in length which was wrapped and jammed around the starboard propeller.

Viva Espana or the Story of my first bounce dive

The hacksaw made the job easily and after a few minutes the end of mooring rope was risen on board to the great satisfaction of the captain who thanked us by inviting us to eat on board.

The meal was nothing exceptional, but for the first time for several days, we could finally eat and drink without having the infect diesel after-taste that was still present on the boat.

During the remainder of my stay, I still had the opportunity to make three more bounce dives all so icy, punctuated by periods of standby during which in addition to the maintenance of the equipment, we took the opportunity to every time make new diving gases with the mixing installation that was inside our workshop container.

Finally on 13 March, the last day of my trip arrived and I took leave of my colleagues.

At the port, Dolores was there again waiting for me. Ah! It was good to see a pretty girl after having lived between guys for several weeks.

Once more she was there to drive me to the hotel because my flight to Brussels was scheduled for the next day which allowed me to again spend a nice evening in city

Viva Espana or the Story of my first bounce dive

Sometimes later while working on another project, I learned that a serious accident happened on my former drilling ship which had killed three of the colleagues I had worked with.

One day they had as usual prepared a new bank of heliox mixture but apparently during the night a valve had leaked and oxygen had spread into the container and had strongly increased the percentage of oxygen.

The next morning, when the team arrived, they opened the door of the container, entered in it, and then... turned on the light.

I hope that they have not suffered.

Papy One

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19 mai 2015 2 19 /05 /mai /2015 09:57
I'm a Sat Diver or the story of my first offshore work

December 1974, already three years now that I worked as a diver for the small diving company from Antwerp (see: Stupid Diver). We were only five divers there, boss included plus two tenders, which meant many dives a week during which I have learned quite a lot of things.

In those days, there were very few companies specialized in this type of activity, and only two or three of them had a staff of employees divers, the company from Brussels where I had started my commercial diver’s career and the one where I worked today.

These two companies were specialized in civil engineering works and most Belgian divers were very well used to this type of work. However, since two to three years, offshore divers demand kept growing and many divers were leaving the Brussels firm to try this adventure.

This situation made my boss smile, because indirectly, this brought us back a few contracts that our competitor could no longer honor due to lack of staff.

On Tuesday, December 25, Christmas day, I received a phone call around three o'clock in the afternoon from a guy who presented himself as the Director of a recruitment company which was looking for experienced commercial divers for offshore projects, and that as such, he absolutely wanted to see me the same day.

Kindly, I replied that today was a holiday, but it didn't cure and wanted to see me immediately. As a result, an hour later I was in his office on the ninth floor of a building on the Louise Avenue. There I fell nose to nose with René, one of my colleagues who was actually also working for the same company as me.

A few minutes later the office door opened and a guy around the forty made us enter in his office. He introduced himself as being Michel G. Director of the FLADAS Company.

I'm a Sat Diver or the story of my first offshore work

After the usual banalities he entered immediately in the heart of the subject, and explained us that he had himself been diving for COMEX, but that he very quickly had discovered that the European offshore diving world sorely lacked experienced divers knowing how to work under water in difficult conditions. And thus he had made up his mind to rob maximum divers from the Belgian and French civil engineering diving companies, for which these working conditions were commonplace.

As a result in his quest for skilled workers he fell upon us through other co-workers.

During our interview, he explained us what offshore diving was.

Everything he told us about this job fascinated me because like many young diver, I was attracted by deep diving. On the other hand, what bothered me a bit in its description was the length of the projects which as Michel said was a month in the North Sea, and two months in the other parts of the world.

At the time I still was a relatively newlywed, and was therefore quite worried to leave my little young and pretty woman at the hands of all these males looking for a prey. Seeing my embarrassment, Michel trying to persuade me, started immediately on the financial aspect of this kind of work and asked me.

- How much do you win at the moment?

- So much! I replied.

He looked at me and said:

- Good for your first trip I offer so much, then a 50% increase over the three following jobs.

- Oops! I swallowed once because even for a first job the sum he proposed was more than threefold my current salary.

- In addition to this, he said you can still add saturation premiums plus some tax benefits if you spend more than six months of the year abroad.

- All this is obviously well tempting I told him, but I can't commit myself without first talking to my wife.

- No problem, do call me back in two hours, I’ll wait here.

Once home, the discussion was very lively. My wife knew I was attracted by this type of diving but she also was afraid that one sends me in Africa or elsewhere for two months and was afraid of not being able to withstand such a long absence.

- And one month I asked her?

- That, I should be able to support she said.

Ten minutes later, I had again Michel at the end of the line.

- Good I told him, I want to go for you, but only for periods not exceeding one month.

- Perfect, you'll turn in the North Sea, and then immediately added:

- Now you know what you have to do.

- Uh, what?

- Give your resignation and keep ready to go from January 5.

EH! Already, this left me less than ten days to prepare my mind and announce my decision to quit to my boss.

The next evening we just had our year-end meal in our little Chinese restaurant where all the staff of the company was happy to dine together once a year. That evening, everyone was seemingly happy and the atmosphere was warm. Only Rene and I were not really in the mood.

Of course, this was because we had decided to announce the news during the evening. The meal was excellent, and then came the time when our boss began his little speech to thank us for the quality of work we had provided during the year.

Now, he starts speaking of the future and begins to philosophize about the dedication of his men to be always available and to the great things that we will accomplish together next year.

Stealthily I give a glance at René. Here we go; it's time to tell him.

As René is more frank than me, he intervenes:

- Boss, I have something painful to announce.

Ouch! The head of the boss changes a little.

- Yes what is it René?

- Well, I have some bad news; I resigned because I go offshore.

Shit, the boss needs to sit. Big discussion between my colleague and him in an attempt to convince him to stay but nothing helped, René stayed on its decision.

Result, a few minutes later he is resigned to lose his best diver, but he immediately adds:

- OK my dear René, no problem it’s your choice and I can’t stop you but fortunately, I still have Francis who will now take your place.

Me, I knew no more where to put myself. And then shyly I said unto him:

- Boss, I too have bad news, I'm leaving with René and I too give my resignation.

That was too much, two back-to-back resignations, the party was fucked.

Over the next few days, I did some shopping because I was told that North Sea was very cold in the winter and so I needed some warm clothing.

Saturday 5 January eleven o'clock in the morning, the phone rings. At the other end of the line it’s my new boss Michel.

- Hi Francis, I call you to announce that you leave this afternoon, I have found you a job in the North Sea on the Jet barge 4.

- Be at the airport at three O’clock.

Shit, it let only four hours to spend with my family.

Fourteen hours, as my wife Michelle cannot yet drive, it’s my parents who take me to the airport. The small hall is crowded, but very quickly I spot Michel who is awaiting me anxiously.

- Hi! Here is your ticket to Aberdeen via London, quick go to register your luggage at counter n° 3. - UH! But it is that I have two large suitcases and one bag.

Michel looks at me in a dumbfounded manner:

- What do you all got in there?

- But Michel I was told that I had to equip myself against the cold.

- Quick! Open them we’ll make a selection.

Result, in the middle of the airport and under the anxious eyes of my family, my boss is throwing away all the cloves he judges unnecessary to take with me. Once this little technical detail set, I quickly went to register my luggage and finally was ready to move to the control desk.

So far, I had been so busy with my departure that I did not really realize what was happening but suddenly, seeing that the time of the separation had come, a ball of anxiety was felt at the back of my throat.

- It is time my loves, I must say goodbye.

Not easy all this, especially for my four-year-old kid who does not well understood why his dad is leaving him for so long.

Here I am on the plane to London. During my youth I had already done some flying in small aircraft, but had never taken a commercial plane and I must say that I enjoyed this first flight.

At the London terminal, I am a little bit confused. Knowing nothing about airports, I virtually stop at all the panels signaling messages to check if one of them does not apply to a flight towards Aberdeen.

Probably seeing that I was a little lost, a stewardess approached me and offered her help. Thus, thanks to her, I found myself quickly in the terminal where my next flight was due to leave.

Twenty hours fifteen, new departure for the Scottish city where I arrive an hour thirty later. For the umpteenth time I reread the roadmap that Michel had given me:

«At Aberdeen airport take a bus and go to the George Hotel on Union Street. ''

Take a bus alright, but which one amongst all those waiting on the parking? Nah, I will just ask a driver. As I had revised my English with the Assimil method during these last days, I proudly asked a first driver:

- Do you go center?

Nice, the guy seemed to have understood because he immediately replied:

- No, yourrrrr arrrrrrrre wrrrrrrong, you etc etc etc. In brief I could only hear a set of words only containing RRRRR consonants that I was not able to understand. Once again I asked him the same question with result the same incomprehensible response.

Odd I thought I've yet revised my English. In my opinion this must be an alien.

Unfortunately not, because apparently everyone here spoke this same strange language. Seeing that I did not understood, the driver showed me another bus telling me:

- Take that bus.

I followed his recommendation and an hour later I was at the front desk of the hotel. Apparently the room had been reserved because as soon as I gave my name, the receptionist handed me a key indicating that the room was on the 3rd floor plus a message telling me that someone would take contact with me during the morning.

Arrived at the door, I opened it, turned on the light and...

- Oh excuse me Sir.

There was a guy in the bed that turned himself grumbling. I quickly get back at the reception and told the lady that she had given me a wrong room because it was busy. Well no, the maid explained to me somehow that it was another diver and that we must share the room.

Result, back in the room, where I now try to carefully store my suitcase without disturbing my new colleague too much. In vain, because of all my racked he opened one eye, then the second.

- Sorry.

- OK No. problem!

- Hello, I'm Francis and I come from Brussels.

- Hi, I'm John and I'm from London.

Phew, John spoke English that I could more or less understand and thus I could undertake a small conversation with him to explain what I came do here. From what I could understand, he also had just arrived and was in bed early because someone would pick him up early the next day. Indeed, on the stroke of five o'clock in the morning, I heard John leave the room in silence.

10 o’clock in the morning, I receive a phone call from a guy speaking French, it’s Yves. He tells me that my departure to the barge is only planned for the next day and then I can have my day. Result, I undertake to do a walk in the city.

I'm a Sat Diver or the story of my first offshore work

But it's Sunday and Sunday’s in Aberdeen means that everything is closed, not a cat on the streets, a dead city and even to make the things worse, the weather is really bad.

- Damn, what am I doing here? I’m depressed and feeling blue thinking to the ones I have left behind me. So it’s better for me to return to the hotel, there at least it's warm.

Eighteen hours a new guy enters the room.

- Hello! I told him I thinking it was a new English diver. In response, I get a “Bonjour” with a strong accent coming from Marseille. It is Maurice, a French diver from Comex which tells me that he also goes on JB4. Suddenly my mood is much better.

Next morning after a hearty breakfast, departure by taxi to Peterhead, a small port located some 50 km north of Aberdeen where a supply boat awaits us together with a few other workers who have to go work at sea.

Mid-morning, the supply boat leaves its berth. It is barely out of the Harbor that it quickly starts to move in all directions by a severe gale.

I'm a Sat Diver or the story of my first offshore work

Me, it's been eight years now that I no longer had set foot on a ship, but very quickly, I could feel the symptoms that I feared: seasickness. We are barely at sea for less than half an hour that my breakfast is already coming out.

In the galley, despite the fact that it is virtually impossible to stand, the Cook is preparing lunch for the crew and the few guys who remained in the lazarette. For me, it is no question to swallow anything because the single smell of the frying food makes me run to the toilets.

Due to this bad weather, the Captain had banned the access to the outside to avoid falling overboard, result not question to go get some fresh air. The only thing to do was to go and lock at best in the bunk.

The next hours, were among the most difficult of my life. The storm had get worse and I needed to wedge myself very strongly to not be ejected from my bed. I didn’t stop to drink and to vomit, I felled so bad that wanted to die.

I told myself that if THAT was offshore, then they could get fucked because I would not spend a month being as seasick as a dog.

I'm a Sat Diver or the story of my first offshore work

The more the time passed and the more I was hamming it up telling myself that I would return ashore immediately.

Finally, after thirty six hours of an interminable trip during which the boat had supplied various oil platforms, Jet Barge 4 was in sight and the seaman on watch came to inform us that we had to prepare ourselves for the transfer.

As I was in agony, I told Maurice that I had decided to stay on board to return to Belgium and to never again in my life put my feet on a boat. Maurice replied with a smile that I would be wrong to do this, because on the barge it would move significantly less.

- I don't care, I don’t move from my bunk.

A ten minute later, the supply is alongside of the barge. To facilitate the transfer of the people, the boat is moored downwind thus reducing somewhat the pitching and rolling. Result, I decided anyway to get up to go and see to what this installation on which I would have to go looked like. What I saw there under my eyes, was a huge pontoon kept in position by a series of large cables that went to the bottom.

It was fully illuminated and a terrible noise came out of her. Yet, as my colleague had said, the barge didn’t seem to move so much. Maybe that after all it would be better to go there and so I immediately returned to the cabin to fetch my luggage.

Back on the afterdeck, I could see that the transfer had begun. The passage between the boat and the barge was made with a basket in which we had to throw our suitcases, and then somehow try to cling on his side and remain there until the moment that the crane operator estimates to be able to pick up the basket without too much risk.

It was now my turn to try my hand at this rodeo.

I'm a Sat Diver or the story of my first offshore work

Due to the not synchronized movements of the boat and barge, it was not easy to get in position. Sometimes I fell in the basket, and then a few moments later, I returned back and fell outside.

A veritable obstacle course. Then without expecting it, the basket lifted off from the deck and I found myself quickly to ten meters in height.

Once landed on board of the barge, it didn’t take me long to feel that actually she moved far less than this fucking tub and I felt immediately better.

I'm a Sat Diver or the story of my first offshore work

My mood also quickly returned when I saw Luc a colleague that I had already crossed on a project in Belgium. After rapid greetings, he told me that I looked like a death warmed up and had a complexion that looked pretty much like the green color of the barge.

No wonder I said with such an infernal trip I'd just suffered. Then after a few usual banalities, he grabbed my suitcase and led us Maurice and me to the stratif that had to register our arrival.

Once these formalities completed, he led us to our room to put our luggage, showed us the various locations of the barge that was important to identify immediately and then finally presented us to a few divers who were doing the night shift.

Me, it was now several tens of hours that I hadn’t swallowed anything and I suddenly felt hungry. Luc invited me to go to the mess where for the first time in my life I could taste some delicious pancakes with maple syrup. While I was eating, my buddy explained that because of the storm, the barge was in standby since several days and divers were free to do what they wanted.

Of course, very quickly I turned the chatting around life on board and the kind of work that was expecting me here.

- Bof, spirit here isn’t high because a few days ago we had a death and you are there to replace him.

Shit, it starts well my new work.

- Actually he said to continue, the barge on which we work is called a Jet barge.

- You should know that here in the North Sea as well as in many other parts of the world, nothing may exceed from the bottom of the sea and this means that all the pipelines that are currently posed must be buried before entering in production and this is where we come into action.

- As you can imagine, such kind of deep trenches are not dug with a Galeazzi water lance.

- Here on the barge we use a huge machine, you will see it tomorrow, which is pulled over the pipe.

- This engine is equipped at the front with a multitude of high pressure lances that disintegrate the soil during the progress, while at the rear of the machine; there is a huge pumping system that sends the sludge out of the trench.

- A few days ago, we did come at the end of a section where an 8 inch valve was installed and it was expected that the Yankees would stop the pulling of the jet at about five meters from this valve.

- Like usual we’ve started the inspection of the trench and the pipe.

- It was John our English diver who was in the water and everything was going well until the moment where he informed us that he passed to the other side of the tube.

- Then all of a sudden, we‘ve heard a horrible scream on the radio and then nothing, no sound of breathing, total silence.

- Immediately, the supervisor has sent the bellman to his rescue.

- The visibility was still extremely reduced and the bellman had the follow the diver’s umbilical to reach him.

- Once on him, he tried to take his colleague in his arms to bring him back to the bell, but the diver was stuck on the pipe and he couldn't remove him off.

- As time went on, the water has clear up and finally, the bellman was able to see that the diver’s arm was inside the tube.

- It’s there that one has understood that the claw had been pulled too far and thus snatched the small valve and a part of the pipeline on which it was welded.

- As the pipe was on air, the tearing off has create a strong delta P at the level of the opening and it's while passing over the pipe that the poor man had his arm sucked in.

- No need to say how difficult it was to take him away from there.

- As the bottom was only thirty-five meters deep, the recovery intervention has been made from the surface because the bellman was too shocked to continue.

- It took us not less than eight hours to free him and to be able to do it we were obliged to fill the pipe with water to get pressure equalization.

- When his arm was finally removed from the pipe, all that remained was the bone. All the rest from the shoulder to the hand had been sucked into the tube.

- It was not nice to see, so you understand why the guys on board feel a little depressed these last few days.

Obviously, there was something.

- And now, what will the next operation be, I asked him?

- For now we wait a lull because there still a dive to do on the pipe , then the barge will lift her anchors to go on another site where we have to dig a new 36 inches stretch of tube. Finally, after having chatted some 10 minutes more with my colleague, I left him and decided to go to bed for a few hours.

Despite the travel fatigue, I did not sleep much. It was probably due in part from the stress of this first mission, but also because of the infernal noise caused by the machinery of the barge that could be heard up to the inside of the cabins.

Result, I get up at the stroke of nine hours, dressed myself warmly and went out on the deck to look where I had landed.

I'm a Sat Diver or the story of my first offshore work

Outside, it was broad daylight. It was bitterly cold and the wind was still blowing very hard.

After having wandered everywhere to discover the various parts of this huge floating pontoon, I then walked to the back of the barge where the commanding and diving post was established.

Luc was still there and was busy to adjust the regulator a diving helmet.

I'm a Sat Diver or the story of my first offshore work

Another diver was putting a coat of paint to the ceiling of the room and two others had their nose stuck inside a playboy magazine.

I'm a Sat Diver or the story of my first offshore work

- Hi, slept well?

- Bof not too well, I find there is quite a lot of noise.

- Don’t worry, you‘ll be used to it quickly.

- Come on, I'll introduce you to the superintendent; he is precisely in the chamber operator’s room. I followed him. On our way we are walking through a room where I can see a huge orange decompression chamber.

- That’s our 2500 chamber he told me it’s in there that we make our saturations, we will show you the installation later.

I'm a Sat Diver or the story of my first offshore work

At the end of the local, a small staircase was climbing to the control room. There Yann the life support technician and Jacques the diving supt were busy to sum up the status of the diving gases.

- Hi, Francis, you’re the new one?

During our interview, he inquired a little about my diving experience, and then at the end he added:

- This afternoon, we will try a dive to sling the pipe, will you do it?

Of course, I was there to dive and thus accepted with enthusiasm.

- Well, it is foreseen around 2 o’clock the dive supervisor will tell you what there is to do.

- In the meantime you can already choose you a diving suit.

At shift change, I met the other members of the day’s dive team. Then the team leader which I forgot the name led me to the rear starboard side of the barge and began to brief me on my future dive.

- You see, here we have a downline that is still moored around the pipe at the level of the valve which has been teared off.

- So, you are going to follow it.

- Once on the bottom, you disconnect the line and you go to your left.

- Make sure that your umbilical is behind you; otherwise you'd go in the wrong direction.

- At approximately twenty meters from the valve you'll arrive at the end of the pipe on which there is a pulling head.

- There you fasten the guideline on the ring.

- After that we will send you a steel wire with a three pieces shackle.

- Once you have recovered it, do give enough slack to the cable to not be bothered by the swell, then you take away the axis of it and you put the shackle over the ring.

- After, you set the axis of the shackle in place, you tighten the nut very hard and you don't forget to put security pin in place.

- And please be careful to not lose the nut.

- Once this is done, you will have to pass on the equalization valve which is located on the other side of the pulling head and close it.

While he was describing what I would have to do, I thought that he was taking me for an idiot who had never slung anything in his life. But very quickly during my other offshore jobs I was going to realize that unlike civil engineering diving it was always like that in offshore: Divers can only take little initiative.

- Has you can see he continued; there is still too much swell to do the decompression stops in water so you'll do surface decompression.

- UH! What’s that I asked a little intrigued?

- It means that you will come up directly to the surface where we will rapidly take off your gear and then put you in the bin where you'll be recompressed to twelve meters while breathing pure oxygen.

- Be careful, because once you are out of the water, you will not have to hang around because you only have three minutes to return to the stop pressure.

I'm a Sat Diver or the story of my first offshore work

Shortly after, the time of intervention has come. Maurice is going to be my standby diver.

Dutifully, I dress myself with an Unisuit dry suit and then for the first time in my life put a face mask on the head.

I'm a Sat Diver or the story of my first offshore work

It’s an orange KMB 9 band mask equipped with communications with the surface.

This also changes me from my dives in the ports and channels where so far with the exception of some special works I only used traction signals to communicate.

Everything was ready. In the earphones I could hear the Chief tell me that I could go.

I went to the edge of the barge waited a few moments for the top of a wave and jumped.

Once in the water, I seized the down line and immediately began to heave myself towards the bottom. The band mask was equipped with a nose block device to facilitate the balancing of my ears but I didn't need it because since always I had learned to clear my ears swallowing.

The only thing I had to think about during the descent was to regularly send some air in my dry suit to prevent it to squeeze. In less than two minutes I was some thirty-five meters down.

There, the visibility was good and I could see that the down line was where the supervisor had said.

The dive took place without any difficulty, in accordance with the instructions I had received. Result, twenty minutes after my departure, I could announce:

- Surface work completed !

On the surface, the supervisor appears surprised because he asked me to confirm.

- Are you sure to have correctly put everything in place?

- Affirmative, everything is in place, tight and secured, and the valve is closed.

- Good in this case you can drop the guideline and come up slowly to the surface and be careful to not turn around the sling.

Slowly, I begin my ascent. Around twelve meters, the effects of swell can be felt strongly. The cable where I come up does not stop to tight and slack and when I look toward the surface, I can see the bottom of the diving ladder in the splash of the waves.

Fortunately I do not have to make my decompression in the water; otherwise I could again have the nausea.

I arrive at the bottom of the ladder which sometimes is at six meters, and then the next moment at three meters. I cling to the steps to remove my fins but it is really not easy.

Now, it's done. Immediately I climb on it to go up on deck. Once on it, three colleagues throw themselves upon me to remove my diving gear then promptly direct me to the DDC. Quickly, I settled down in the sas, seize the oxygen mask and begin to deeply breathe this pure gas that should prevent me to get bend.

A few seconds later the door of the chamber closes while that via the intercom the LST informs me that he will begin to pressurize. Immediately, the air starts to fuse in the sas and in less than a minute, the door of the main chamber opens by equilibration.

Whew !, my surface interval lasted less than three minutes. I am inside the procedure prescribed by the decompression table and can now enter into the chamber to lie down on the bunk while continuing to breathe O2. I am in for ten minutes.

Not bad at all this way of decompression I thought that allow me to decompressed in the dry and protected from the swell. But what I was unaware at the time, it is that this technique is not without risk for the diver because during the surface interval the tissues are in a state of supersaturation and the risk of a decompression accident is real.

Moreover it’s used to say that surface decompression procedures are semi-controlled decompression accidents which are treated immediately and even a study has proved that S.D tends to produce ten times more type II (neurological) DCS than in water decompression.

Beside at long term, this practice has also serious consequences on the health of divers who have during their career intensely done this type of decompression and many of them are today highly disabled or even invalid.

Fortunately, Comex is aware of these risks and practiced the surface decompression only in exceptional circumstances such as for instance today.

My dive had apparently met the requirements of the Supt because as soon as I stepped out of the chamber, he told me that I would be part of the next saturation which should take place in a few days if the weather calms down.

He then asked the dive supervisor to show me the complete deep diving installation during the next hours and brief me on the various ongoing work procedures for the setting of the jet and the inspections.

Super, my first project and I can already go into 'sat'. Other divers do not have this chance and many of them will sometimes have to wait long before living this experience.

As the work was entirely finished on this site two tugs had begun to recover the anchors.

I'm a Sat Diver or the story of my first offshore work

This maneuver lasted a dozen hours during which we could hear the haunting sound of the twelve winches that were returning the kilometers of cable. Once the last anchor on board, the barge was taken in tow and moved to its new destination.

During the towing, at the exception of a few deck hands, the barge was living in idle. In the gangways, some Americans with a stinking cigar in their mouth had installed games tables around which they spent long hours playing poker accompanied by large glasses of whiskey.

Because of this, a thick smoke cloud and a smell of cold tobacco floated on the ceiling of the cabins and decayed the atmosphere.

Twenty-four hours later, we were on site but due to the bad weather, the barge still remained in standby for several days. I used this period to spend a maximum time to study all the facilities and equipment I didn't know.

Everything was looked at:

The diving bell in which I spent a few hours studying the various gas circuits that were in so that I get able to identify them in case of problems and isolate them in the dark.

I'm a Sat Diver or the story of my first offshore work

The huge claw that was actually hanging at the surface and around which I shall have to move without any visibility.

I'm a Sat Diver or the story of my first offshore work

The chamber, in which I was going to live in the next few days.

I also spent a lot of hours with chamber operators who taught me in the art of making breathing mixtures. In short everything I saw, passionate me.

Then finally, on January 17 the weather calmed and for the first time in my career I went into saturation.

The three colleagues who accompanied me were Maurice, the one with which I was going to do team, Alain the Tahitian and a Canadian diver which I have unfortunately forgotten the name. Fourteen hours, start of the pressurization.

The chamber is compressed with air up to ten meters to bring the partial pressure of oxygen to 420 mb.

- Everything Ok guys? Yann asked.

- Yes everything is alright.

- OK, I send the helium.

Slowly, pure helium sets out through the chamber atmosphere. Very quickly, my voice changes and I'm starting to talk like Donald Duck.

Tens of minutes later, we have reached the living depth of sixty five-meters.

The supervisor informs us that the deck crew is ready to lower the jet and that Maurice and I can start to prepare ourselves for the dive.

As I have never be in a diving bell, the diving Supt decided that for safety reasons Maurice had to be the bellman and therefore it’s to him to make the bell checklist.

I decided however to watch him so I would know how to do it for the next dive. Once in the bell, my colleague tided up a few things and then informed the surface:

- Surface I'm ready for the checklist.

- Ok Maurice, we start with the communications.

- Bell communication

- Ok

- Diver helmet

- 1, 2, 3, 4, 5 how do you read me?

- Five on five

- Bellman Mask

- 1, 2, 3, 4, 5 how do you read me?

- Five on five

- Auto-generator

- 1, 2, 3, 4, 5 how do you read me?

- Five on five

- Let’s skip to the electricity.

- Inner light?

- Ok

- Outdoor light?

- Ok

- Scrubber?

- Ok

- Heating?

- Ok

- It's good Maurice, one passes to the valves

- Inflation by umbilical?

- Closed, I do a test

- Arrival bellman?

- Open

- Umbilical arrival?

- Open

………And so on

- Alright Maurice, checklist complete, you can call your diver in the bell.

Excitedly I went in the bell and settle on the small seat while the bellman closes the lateral door. The surface decompresses the hub then a moment later we can hear that one of the divers is disconnecting the bell with great blows of a hedge hammer. Here it is, the bell moves to the end of its portico, rises a little, and then slowly starts to descend.

Through the porthole one can see that the night has already fallen.

I'm a Sat Diver or the story of my first offshore work

The passage through the splash zone is pretty hectic and the bell moves violently in all directions. Maurice tells me to hold on well.

Then very quickly the rodeo calms and the bell go down to the abyss.

Sixty five meters, the bottom door opens slightly under the effect of the pressure and a trickle of water fills the bottom of the bell.

Immediately, Maurice announces:

- Surface door open stop the descent.

Through the halo of light made by the external projectors I can now see the bottom of the sea where a lot of cods are swimming.

I dip my hand in water: Brrr! it’s cold. Fortunately, Maurice has already connect the hot water hose to my diving suit and so I will warm up a bit before I immerse.

The supervisor calls me:

- Ok Francis the jet is about five meters from the bottom.

- How is it going, not too nervous for this first?

- No problem I’m fine.

Here it is. I am now fully equipped and after a communication test with the surface, I do the OK sign to my colleague and let myself gently slide into the icy water.

Immediately I feel the pleasant warm water circulation in my suit. Super, I have the impression of being in a warm bath.

Slowly I go down on the bell counterweights and do a complete turn on myself to watch what is around me. It's dark and I can’t see anything beyond the beam of the projectors.

A little on the starboard side of the bell I can see the jet that dangles at a few meters over the bottom.

A call coming from the surface reminds me to order.

- Francis, are you ready?

- Yes surface , I’ve spot the jet.

- Okay, first thing to do is to search the pipe.

- In principle you should find it if you go at 3 O’clock.

- Understood surface.

I let myself fall on the bottom which is located some five metres below, and then displace myself in the said direction. I'm moving slowly on the sea floor. The more I go away from the bell the more it starts to get dark. But despite all the visibility remains good.

In the distance, I begin to see a dark mass. It must be the pipe. Actually, a few metres farther the 36-inch pipeline is there resting on the sandy bottom.

- Surface! That's it, I found it!

- Ok Francis, sits you on the pipe, I'll ask at the bellman to look of how far you’re out.

- Maurice, can you tell me how many meters the diver is out?

- More or less thirty meters.

- Thirty metres, thanks.

- Ok divers, we'll make a move of twenty meters to starboard with the barge.

- Maurice, you take care of the umbilical.

- Understood, you move the barge.

Slowly the barge winches start to turn on. Some give slack on the port cables while others pick up the slack on starboard. Slowly, the bell comes closer to me.

Here it is, I start to distinguish the claw.

- Surface!

- Yes Francis.

- Here it is I'm starting to see the Jet.

- Ok, we have nearly completed the move.

Some instant later, the supervisor Announces:

- Twenty meters, movement is finished.

- Can you tell me how far we are from the pipe?

I look a little upwards, and can now see this enormous mass of dozens of ton of steel swinging around in all directions at the discretion of the swell.

- The jet is about five to six meters on the port side of the pipe.

- Ok Francis, now it's up to you to play.

- You first bring the machine above the pipe.

- Ok well understood.

- You can still move the barge three meters to starboard.

- Let’s go for three meters.

At the end of two or three small additional displacement, the jet is finally over the pipeline. Still sitting on it, I take a few minutes to study its behaviour. It has a vertical movement of about two to three meters, while it oscillates laterally for a good meter. Result, I stress a little because with these random movements, I do not have much room for manoeuvre.

On the surface, the supervisor (probably pushed by the client) asks me to act.

- Yes, do not worry, it comes, I just do not want to crush the pipe.

Quick a last control to make sure that my umbilical runs well behind me and so doesn’t risk passing under the machine.

Ok let’s do it !

- Surface easy down on the jet until I say STOP

- Down to the stop.

The ramp with the injection nozzles are approaching dangerously from the pipe.

I'm a Sat Diver or the story of my first offshore work

- STOP the descent.

- It is stopped.

Because of the swell, the huge mass of steel dances now up and down to a few inches from the top of the tube.

- OK, be ready to drop the jet.

I'm waiting for a few seconds then finding the right moment I shout:

- DOWN! DOWN! DOWN!

Immediately, the machine begins to descend quickly over the pipe until it’s stopping on the sea bed.

Moments later, the surface informs me that weight gauge indicates that the machine is standing. Phew !, I think that I haven’t broken anything.

The installation has generate a sand cloud but rapidly the small current sweeps the cloud away and I can now clearly see that the jet overlaps the pipeline. But because of the hardness of the soil, the two injection ramps are only buried to a few tens of centimetres.

- Surface!

- Yes Francis I listen.

- Good, the jet is standing correctly, but it should still come down for more than one meter until the sled touches the bottom.

- Well received, go and put yourself on the counterweight, we'll start the pump to let it go down.

- Maurice, pick up diver slack diver returns to the counterweight.

- Ok I do.

I'm now under the bell since two or three minutes, when all of a sudden a huge racket begins to be heard. These are the high pressure nozzles and pumps which are set in action. The acute wheezing becomes stronger and stronger, I feel as if I’m next to a jet plane that’s taking off.

The noise is so loud that all of a sudden I'm afraid that all explodes.

Around the claw a thick cloud of sand begins to reduce visibility. Then finally after a few minutes the noise decreases a little.

The supervisor calls me:

- Okay, Francis, we have ceased the jetting and pumping, and open the internal circuit.

- Can you go and look if the sleds are now resting properly on the bottom?

- Uh ! that’s all well and good but the jet is still running.

- Don’t be afraid it makes noise, but the pumps are shut down and you risk nothing.

- Ok, if you say so I’ll go.

On the bottom the visibility is nil. Fortunately the jet is only located a few metres from the bell and I find it easily.

I'm a Sat Diver or the story of my first offshore work

The big machine has effectively come down and her two skates are now on the bottom.

- Surface the jet is in position.

- Perfect Francis, you worked well, you can go back to the bell, diving is complete.

I returned to the diving bell quite happy to have succeeded my first deep dive and once in it I comment it proudly with my colleague.

I'm a Sat Diver or the story of my first offshore work

During the next two days, we could still perform some inspection dives. Then in the late afternoon Jacques came to the radio to inform us that a new storm was forecast and that the barge was lifting the anchors to go for shelter. Result, we had to be decompressed.

- What already! I said to my diving buddies.

- Well Yes, Alain tells me it's always like that in the North Sea during winter time, a few days work and then standby weather then continues by telling me that once he had spent a month at sea without making a single dive due to bad weather.

Our decompression lasted for nearly seventy hours.

As the barge was again in tow, we could feel that she was moving a lot. Maybe was it due to the pressure or because I got sea legs again, but I had not the slightest nausea.

Tuesday 21, the door of our recompression chamber opened in the early afternoon and I could again breathe the pure air of the North Sea.

The rest of the work took place as it had started by a long period of stand-by. Then at the end of the month the bad weather ceased and a new team could again enter in saturation.

For me the end of my first trip was close because my replacement was scheduled in the coming days. Finally, on 2 February, I did the opposite voyage and was back two days later within my small family and in the arms of my little Darling that had missed me so much.

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